ASTM D7280 - 06(2011)

    Standard Test Method for Quinoline-Insoluble (QI) Content of Tar and Pitch by Stainless Steel Crucible Filtration

    Active Standard ASTM D7280 | Developed by Subcommittee: D02.05

    Book of Standards Volume: 05.04


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    ASTM D7280

    Significance and Use

    This test method is useful in evaluating and characterizing tar and pitch. It is also useful as one element in establishing the uniformity of shipments and sources of supply.

    1. Scope

    1.1 This test method covers the determination of the quinoline-insoluble matter (QI) in tar and pitch using a stainless steel filtering crucible and a filtration membrane.

    1.2 This test method was evaluated in round robin testing using materials in the range of zero to twenty quinoline insoluble weight percent (wt%).

    1.3 Since this test method is empirical, strict adherence to all details of the procedure is necessary.

    1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D71 Test Method for Relative Density of Solid Pitch and Asphalt (Displacement Method)

    D95 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation

    D329 Specification for Acetone

    D362 Specification for Industrial Grade Toluene

    D850 Test Method for Distillation of Industrial Aromatic Hydrocarbons and Related Materials

    D2318 Test Method for Quinoline-Insoluble (QI) Content of Tar and Pitch

    D4296 Practice for Sampling Pitch

    E1 Specification for ASTM Liquid-in-Glass Thermometers

    E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method


    ICS Code

    ICS Number Code 75.140 (Waxes, bituminous materials and other petroleum products)

    UNSPSC Code

    UNSPSC Code 30121602(Pitch)


    DOI: 10.1520/D7280-06R11

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